Stereotype plate casting mechanism



Dec. 27,1938. N, o, TEMTE. 2,141,802

STEREOTYPE- PLATE CASTING MECHANISM y .BY '4 s Y Dec. `27, 1938. N. o. TEMTE STEREOTYPE PLATE CASTING MECHANISM 4 sheetsnshegt 2 Filed Oct. 2l, 1956 ATTORNEYS' Dec. 27,1938. N. o. Tl-:MTE 2,141,802 V n STEREOTYPE PLATE' CASTING MECHANISM n 'Filed Oct. 21, 1956 4 Sheets-Sheet 3 TTORNEY Dec. 27, 1938.

N. o. TEMTE 2,141,802 STEREQTYPE PLATE CASTING MECHAN'ISM Filed Oct. 21,-1936 4 Sheets-Sheet 4 `v j BY Mmmm Patented'Dec. 27, 1938 UNITED STATES PATENT 'OFFICE' STERETYPE PLATE CASTING MECHANISM.

Nils Olsen Temte, Chicago,

Ill., assignery tol The Goss Printing Press Company,l Chicago, Ill., a

corporation of Illinois v Application October .21,y 1936,

Serial No. 106,721

1 claims. (ci. zz-z) The invention relates to new and useful iml tice vwith the invention, the same being realized and attainedby means of the instrumentalitie's and combinations pointed out in the appended claims.

4The invention consists in the novel parts, con- 15 structions, arrangements, combinations and improvements herein shown and described. v

The accompanying drawings, referred to herein and constituting a part hereof, illustrate one embodiment of the invention, and together with ,20 the description, serve to explain the principles of the invention.

Of the drawings:

Fig. 1 is a.l vertical central section through a nat casting machine embodying the invention;

Fig. 2 is an enlarged full horizontal section on line 2-2 of Fig. 1;

Fig. 3 is a side elevation looking at Fig. 2 from the top and showing the box in open position;

Fig. 4 is a plan looking down at the drag on 30 lines 4--4 of Fig. 3;

Fig. 5 is a fragmentary elevation on lines 5-5 of Fig. 1;

Fig. 6 is a fragmentary elevation on lines 6-8' of Fig. 1; and i 35 Fig. 'l is a fragmentary end elevation :of the box-closing means.

The invention finds its present chief applica-` -tion in flat stereotype plate casting boxes and is directed mainly to producinga simple, sturdy and economical mechanism utilizing vacuum suction and producing plates of different widths, usually from 'one column wide to any desired number of columns. With these and other ob- 'jects in view the invention provides a casting chamber whichmay be varied in widthby co1- umn units from one column up, and the vacuum suction is applied to the matrix or matrices of any given width, and, if desired, a plurality of narrow side-by-side casting chambers may be` employed, each having its own vacuum suction; and there is further preferably provided a vacuum held backing sheet in the drag, which likewise maybe of various widths as desired, or may be acted .on by vacuum for various parts of its width. Asembodied,afiatcastingchambei'ls provided comprising a drag movable between casting and delivery positions, and having a plurality of separate internal air suctionor vacuum chambers, each preferably of column width, each chamber having its own air suction system with separate valve control for each air chamber. The drag has also means for holding one or more matrices of various unit widths, as required, the vacuum created in the aforesaid chambers acting on'such matrices as are used in any particular casting, the vacuum beingcut off from any part of the drag which may not be in use. The copev in this embodiment .h olds a back sheet to act as a non-'conductor and to give a smooth back iinish to the plates, and the cope is likewise provided with a plurality of unit width internal vacuum chambers, each having its `own air conduits and valve control. VOther features and objects of the invention will be set forth later herein,

and it will be understood that the foregoing. general description, and the following detail description are illustrative and exemplary, but are not restrictive of the invention. y

Referring now in detail to the embodiment of the invention illustrated by way of example in the accompanying drawings, the mai lne is shown having two vertically disposed side frames I and 2 connected together at their front ends by cross pieces 3 and 4, and at their rear ends vbythe casting box structure. The machine ls mobile, and the frame is mounted at its rear on a pair of rear rollers 5 and at its front on a pair of casters 6. The embodied mechanism is designed for the production of nat plates. The I l 35 casting mechanism comprises an upright, fixed f cope II which is xed to, and also serves to unite the side frames I and 2. The copehasl laterally extending bosses 9 and I0 at either side, within the side frames, and bolts I2 land I3 pass through the side frames and are threaded into the bosses 9 and IIJ. 'Ihe cope has a flaring mouth 8 'at the top for conveniencein pouring.

The cope is adapted to hold a backing sheet within -the casting chamber to provide partial heat insulation and to give the plates a smooth back nish. This .back is acted upon by vacuum suction, and the vacuum is provided by a series of chambers extending vertically the length of the plate, and being of unit width, usually of column width, across the chamber, and these chambers Acommunicate by a great number of smal openings with the means'can createvacuum suction by unit sections across the casting chamber.A As shown, the

casting chamber is four columns wide and has '55 inner face of the cope. These- Il and Il extending the length of the casting chamber and each approximately'one column wide. These chambers communicate through a Iargenumberofsmall openings I5 with thehiner face of the cope to exert holding suction on the back sheet .8. Each individual chamber' is provided with means for creating and controlling vacuum in the individual chambers, and for this lpurposeeachoftnechambers um llnasati f bottom'end a laterally extending part 2l, and a series of pipes Il., II, Il* and Il* are provided each openingl into the corresponding chamber, andeachhavingavalvebywhichtheair suctionmaybeturnedonorcutoiif. Theaefour pipes communicate with a-header 2l which is connected to the pump. A Abacking sheet S is mountedagainsttheiaceofthecope Il toconatitute a non-conductor between the hot metal andthe copeandalsotogiveasmoothiflxiishto the back of the plate. Thereispreferably provided achamber or chambers 28 back of the series of vacuum chambers, through which coolingwatermaybecirculated,orwithinwhich Aaniment; elements may be placed.

The drag n ismovable between a verul casting position and a horizontal position-for in-4 serting and removing mats and for removing thecastplat. Intheembodiediormofdrag movingandguidingmeans,ther'eareilyxedto thebackofthedragandextendingrearwardly therefrom at eithersideapairofarmsuand ilandashattllismountedintheouter end of said arms and extends across the machine.'

TheshaftI'iisalso pivotallycarriedinthe Aupper end ofa pair of arma Il and Il. which arms are pivotally mounted at 4I and 4| upon the two side frames, respectively. Also as a. part of the drag movingrand guiding mecha- 40 nism, two rollers I3 and 44 are mounted on short shafts 46 and" whichshaitsarexedtoand project from either side of the drag. These rollers support the drag at either side @and run, respectively; on horizontally-disposed trach I and Il formed on the top edges of the two side framemembers I and 2 ofthehmachine. Iheae extendsacrosstheiace of.thedrag oobottomendandconstitutesthebottomot castingchamben Thememberiissupported ininclinedrecessintwobrachets whicharexed withtheiraquare against 7 the side of the lbottom stop Il, these vertical four vertically-disposed vacuum chambers Il, i1,

edgesofthematsm.

Themeansi'orapplyingvacmnnsuctiontothe matunitgwhetheroneormorecohunnsinwidth.

comprises internal chambers 15, 1I, 'II and 18,10

ottheplateorplatesbeingmeachchamber is provided with vacuum controllingmeans. Forthispurve,eaehoftheeham bersliandll,respectively,hasalateraliyex tending upperpart 84- and areintegralwithandextendoutwardlym ateithersideoithetopandbottomoftheback iaceoithedrag. Incatedintheot .each pair of lugs, respectively, are a pair of transverselydposedbars lland ,whichare roimdedtoiitintothelusabutareotherwise preferably square. A vertically-disposed, centrally-locatedbraee member 'III at either end, the two recesses iitng, respectively, overthe central portions of the two rods 91 and 98. through this aperture projects a screw-threaded pin III, which pin'is fixed in and projects from a central core Illinvthedragcasting. Anut lll is screw-threaded@ the pin lll to hold the structuretogether. A

The embodied means -ior clamping thevcope anddragincasting position comprises twopairs of hook. Il! and Ill,the upper hooks Il! being xed on a shalt III extending transversely acrossvthebuckoi.'thecope,andbeingjourrsaledQ manrorlussllznxedmandpmjecung'om, either-sideofthecope. Thelowerpairofhooks Hlarexedtoashaftil'lextendingacrothe luwerendoi'thebackoi'tlcopetheshaitbeing journaledin s pair ot'lugs III ilxedtoandex-- Ill and III hook over the squared endsot bars lland,respectively,toholdthecastingcham berinclosedpition. Thetwopairsoi'hooks areconnectedtooperate andforthis 7 purpeanarm Il! isiixedtotheshatt III and an ann III is-xedto the shaft II'I, and a connecting'link [2l is pivoted at either end to the ends of the arms Il! and |20, respectively. A

handle ilisiixedtooneend'ottheshatt iii n;

whereby the operator can actuate all the hooks to clamp the cope and drag together for casting, or to release the drag after casting. Means are provided for casting plates of different thicknesses, and as embodied, the squared ends of bars 91 and 98 v vhich engage, respectively, with the hooks |99 and H0 are shapedto give diierent depths to the casting chamber. An end of bar 99 is shown with four hook-engaging surfaces either of which may be brought into position to coact with the hook |09 by turning the bar 98 by quarter turns. These hook-engaging faces are notched back from the flat surfaces of the bars and are so positioned as to give different depths to the casting chamber. each bar 91 and 98 are so formed. The rails 65 forming the sides of the casting chamber, and

` rail 6I forming the bottom thereof will be selected of proper thickness in each case.

The invention in its broader aspects is not limited to the specic mechanisms shown ,and described but departuresmay be made therefrom within the scope of the accompanying claims Without departing from the principles of the' invention and without sacriiicing its chief advantages.

What I claim is:

1. A stereotype plate casting machine including in combination walls enclosing a casting chamber, other walls'cooperating with the exterior of one of the casting chamber walls to form a plurality of internalvacuum chambers of plate unit width', means for creating suction at will in one or more of said vacuum chambers, means for holdingmatrices of various unit width against said casting chamber wall, means for holding a backing sheet against a wall of said chamber, including a plurality of vacuum chambers of plate unit width communicating by an opening in said last-mentioned Wall with the casting chamber, and means for varying the width of the casting chamber.

2. A stereotype plate casting machine including in combination Walls enclosing ,a casting chamber, other walls cooperating with the exterior of one of the casting chamber walls to form a plurality of internal vacuum chambers of column unit Width, communicating with said chamber by means of an opening in a wall of the chamber, meansfor positioning one or more matrices one or more columns in width against said casting chamber wall, and means for creating vacuum in the vacuum chambers that are behind the matrix r matricesused in a particular casting.

3. A stereotype plate casting machine including in combination walls enclosing a casting chamber, other walls cooperating with the exterior of one of the casting chamber walls to form a plurality of internal vacuum chambers o1' column unit width, communicating with said chamber by means of. an opening in a wall of the casting chamber, an insertible and removable strip Both ends of adapted to hold a matrix and to constitute a. casting chamber side wall, said strip being positionable at different column widths in the casting chamber, and selectively operable valve means for applying suction to each of said vacuum chambers that are behind the matrix or matrices used in a particular casting.

4. A stereotype plate casting machine including in combination walls enclosing a casting chamber, other walls cooperating with the exterior of one of the casting chamber walls to form a plurality of internal vacuum chambers ci column unit Width, communicating with saidv chamber by means of an opening' in a wall of the casting chamber, an insertible and removable strip adapted to hold a matrix and to constitute a casting chamber side wall, said strip being poing in combination walls enclosing a casting.

chamber, other Walls cooperating with the exterior of one of the casting chamber walls to form a plurality of internal vacuum chambers of. column unit Width, communicating with said chamber by means of an opening in a wall of the cast- -ing chamber, insertible and removable strips adapted to be spaced Within the casting chamber in selected column width positions, said strips being adapted to hold a matrix edge and constitute a chamber side Wall, and means connected io each of said vacuum chambers to create vacuum in one chamber independently of another.

6.-A stereotype plate casting machine including in combination walls enclosing a casting chamber, means for positioning matrices of various widths within the chamber, means for selectively applying suction to various sized areas of a. casting chamber wall to hold various sized matrices, and means for varying the sizeof the casting chamber so that suction may be applied to only that area in use for casting and corresponding to the matrix area.

7. A stereotype plate casting machine includ-` ing'in combination walls enclosing a casting chamber, means for positioning matrices of various widths within the chamber, means for selectively applying suction to various sized areas of a wall of the casting chamber, means for applying suction to various sized areas of the opposite wall of the casting chamber .to hold a backing sheet, and means for varying the size of the casting chamber 'so that suction may be applied to only that area in use for casting and corresponding to the matrix area.

Nr.5 oLsEN TEMTE. 

